Transportation System Characteristics

Fact Sheet

Nationwide, 401 National Park units cover more than 84 million acres. Access to and travel within these special places are made possible by the NPS transportation system. The NPS transportation system provides essential public access to parks, provides visitor mobility within parks, and allows the staff to conduct park operations. This transportation system includes::

. 5,500 miles of paved roads (of which 1,100 miles are parkways)
. 4,100 miles of unpaved roads
. 1,442 bridges
. 63 tunnels
. 131 alternative transportation systems in 66 park units
. 17,872 miles of trails, of which 5,012 miles (28%) are paved